Characteristics of compressible flow of supercritical kerosene

作     者：Feng-Quan Zhong Xue-Jun Fan Jing Wang Gong Yu Jian-Guo Li 

作者机构：Institute of MechanicsChinese Academy of Sciences100190 BeijingChina 

出 版 物：《Acta Mechanica Sinica》 (力学学报（英文版）)

年 卷 期：2012年第28卷第1期

页      面：8-13页

核心收录：

学科分类：080704[工学-流体机械及工程] 081705[工学-工业催化] 080103[工学-流体力学] 08[工学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China (10672169 and 10902115) 

主　　题：Supercritical kerosene - Compressible flow Laval nozzle Isentropic process 

摘      要：In this paper, compressible flow of aviation kerosene at supercritical conditions has been studied both numerically and experimentally. The thermophysical properties of supercritical kerosene are calculated using a 10- species surrogate based on the principle of extended corresponding states （ECS）. Isentropic acceleration of supercritical kerosene to subsonic and supersonic speeds has been analyzed numerically. It has been found that the isentropic relationships of supercritical kerosene are significantly dif- ferent from those of ideal gases, A two-stage fuel heating and delivery system is used to heat the kerosene up to a tem- perature of 820 K and pressure of 5.5 MPa with a maximum mass flow rate of 100 g/s. The characteristics of supercritical kerosene flows in a converging-diverging nozzle （Laval nozzle） have been studied experimentally. The results show that stable supersonic flows of kerosene could be established in the temperature range of 730 K-820 K and the measurements in the wall pressure agree with the numerical calculation.